吉首大学学报(自然科学版)

• 化学化工 • 上一篇    下一篇

CO2和CH4在3种分子筛中的静态吸附实验

陈淑花,刘学武,邹久朋,王晓娟,郑国锋,王睿   

  1. (1.大连大学环境与化学工程学院,辽宁 大连 116622;2.大连理工大学化工机械与安全学院,辽宁 大连 116024)
  • 出版日期:2018-01-25 发布日期:2018-01-27
  • 通讯作者: 刘学武(1974—),男,大连理工大学化工机械与安全学院副教授,博士,主要从事功能材料研究.
  • 作者简介:陈淑花(1976—),女,大连大学环境与化学工程学院副教授,博士,主要从事超临界流体技术研究
  • 基金资助:

    国家自然科学基金资助项目(21776029)

Experimental Study of Static Adsorption of CH4 and  CO2 Mixture

CHEN Shuhua,LIU Xuewu,ZOU Jiupeng,WANG Xiaojuan,ZHENG Guofeng,WANG Rui   

  1. (1.College of Environmental and Chemical Engineering,Dalian University,Dalian 116622,Liaoning China;2.School of Chemical Machinery and Safety,Dalian University of Technology,Dalian 116024,Liaoning China)
  • Online:2018-01-25 Published:2018-01-27

摘要:

采用静态容积法分别测量CO2和CH4在 5A、13X 和13X-APG 沸石分子筛上的单组份等温吸附曲线,探究了吸附温度和吸附压力对吸附量的影响.实验结果表明,降低吸附温度和增加实验压力会增大吸附剂对CO2和CH4的吸附量,3种沸石分子筛对CO2的吸附量均比对CH4的大,-30 ℃时CO2和CH4在3种吸附剂上的饱和吸附量都最高,CO2分别为4.94,6.52,6.35  mmol/g,CH4的分别为3.00,3.25,3.79 mmol/g.13X-APG沸石分子筛经200 ℃、180 min加热再生后的吸附效果较好,能满足吸附剂再生要求.

关键词: 分子筛, 静态容积法, 低温吸附, 吸附平衡

Abstract:

The single-component isothermal adsorption curves of CO2 and CH4 n zeolites 5A,13X and 13X-APG were measured by static volumetric method.The adsorption temperature and adsorption pressure on adsorption capacity were investigated.The experimental results showed that the adsorption of CO2 and CH4  increased as the adsorption temperature decreased and the experimental pressure increased.The adsorption capacity of the three zeolite molecular sieves on CO2 was larger than that of CH4.At -30 ℃,the saturated adsorption capacity of CO2 and CH4 on the adsorbent used was the highest,the adsorption capacity of CO2 were 4.94,6.52,6.35 mmol/g,the adsorption capacity of CH4 were 3.00,3.25,3.79 mmol/g.The regeneration performance of 13X-APG zeolite was at 200 ℃ for 180 mins  good and met the requirement of regeneration of adsorbent.

Key words: molecular sieve, static volumetric method, cryogenic adsorption, adsorption equilibrium

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